Setting Groups

This section presents a series of examples that set and create groups.

You can use the following methods to indicate that thread 3 in process 2 is a worker thread:

dset WGROUP(2.3) $WGROUP(2)

Assigns the group ID of the thread group of worker threads associated with process 2 to the WGROUP variable. (Assigning a nonzero value to WGROUP indicates that this is a worker group.)

dset WGROUP(2.3) 1

This is a simpler way of doing the same thing as the previous example.

dfocus 2.3 dworker 1

Adds the groups in the indicated focus to a workers group.

dset CGROUP(2) $CGROUP(1)
dgroups –add –g $CGROUP(1) 2
dfocus 1 dgroups –add 2

These three commands insert process 2 into the same control group as process 1.

dgroups –add –g $WGROUP(2) 2.3

Adds process 2, thread 3 to the workers group associated with process 2.

dfocus tW2.3 dgroups –add

This is a simpler way of doing the same thing as the previous example.

Following are some additional examples:

dfocus g1 dgroups –add –new thread

Creates a new thread group that contains all the threads in all the processes in the control group associated with process 1.

set mygroup [dgroups –add –new thread $GROUP($SGROUP(2))]
dgroups –remove –g $mygroup 2.3
dfocus g$mygroup/2 dgo

The first command creates a new group that contains all the threads from the process 2 share group; the second removes thread 2.3; and the third runs the remaining threads.